Improvement in dumping-cars



I J. R. DUBOISQ improvement in Dumping-Cars. 8'i8.

Patented Nov. 5,1872.

Np. I32

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UNITED STATES PATENT FFIGE.

JOHN R. DUBOIS, OF VIRGINIA CITY, NEVADA.

|MPRCVEMENT IN DUMPlNG-CARS.

Specification forming part of Letters Patent No. 132,818, dated November 5, 1872.

To all whom it may concern.-

Be it known that 1, JOHN RoswELL Donors, of Virginia City, in the county of Storey and State of Nevada, have invented a new and Improved Dumping-Oar, of which the following is a specification:

My invention relates to improvements in the class of dumping-cars in which the box is hinged and pivoted so as to be turned horizontally and also be tilted toward either side or end of the truck; and it consists in the pe cnliar arrangement of locking devices for preventing the box from swinging around on the turn-table-at the same time that it is held from tilting.

Figure 1 is a longitudinal sectional elevation of my improved dumping-car withthe box shown in dotted lines in the position it occupies after dumping, and Fig. 2 is a. horizontal section taken on the line 00 a; of Fig. 1.

Similar letters of reference indicatecorrespondin g parts.

A is the truck-car, with a small platform, B, at the center, or a little in advance of it, with a strong king-bolt, 0, extending through its vertical center and through a turn-table, D,

which is thereby pivoted to said platform so as to revolve horizontally; and to this table the box E is hinged, as shown at F. At one end I have arranged a hook, G, on an oscillate ing shaft, H, with an arm, I, projecting through the front end of the platform in such manner as to be secured to lock the car-box by a sliding bar or bolt, K, which slides in front of it,

to hold the hook Gin the staple L of the box;

truck A M O, in combination with a staple, L,

and lock-bolt K, as and for the purpose described.

JOHN ROSWELL DUBOIS.

Witnesses:

WILL. H. BURRALL, J OHNH. KETTELL. 

